Consequences of an attractive force on collective modes and dust structures in a strongly coupled dusty plasma

Autor:	Donko, Zoltan, Hartmann, Peter, Shukla, Padma K.
Rok vydání:	2012
Předmět:	Physics - Plasma Physics
Zdroj:	Physics Letters A 376 (2012) 3199
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physleta.2012.08.039
Popis:	We present an investigation of the combined effects of the Debye-Huckel (DH) repulsive and overlaping Debye spheres (ODS) attractive interaction potentials around charged dust particles on collective modes, phase separation and ordered dust structures in a strongly coupled dusty plasma. We obtain static and dynamical information via Molecular Dynamics simulations in the liquid and crystallized phases and identify the onset of an instability in the transverse collective mode, by using (zero-temperature) lattice summation method. The present results are useful for understanding the origin of coagulation/agglomeration of charged dust particles and the formation of ordered dust structures in low-temperature laboratory and space dusty plasmas.
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1208.0436 Zobrazit plný text záznamu View this record from Arxiv